HANDLE hToken;
    TOKEN_PRIVILEGES tp;
    LUID luid;

    OpenProcessToken(GetCurrentProcess(), TOKEN_ADJUST_PRIVILEGES|TOKEN_QUERY, &hToken);
    LookupPrivilegeValue(NULL, "SeShutdownPrivilege", &luid);

    tp.PrivilegeCount = 1;
    tp.Privileges[0].Luid = luid;
    tp.Privileges[0].Attributes = SE_PRIVILEGE_ENABLED;

    AdjustTokenPrivileges(hToken, false, &tp, 0, NULL, NULL);

     ExitWindowsEx( EWX_SHUTDOWN, 0 );